The vulnerability of the ShutdownObserver() function in browsers such as Mozilla Firefox, Firefox ESR, and the email client Thunderbird allows an attacker to compromise the confidentiality, integrity, and accessibility of protected information.

The vulnerability of the ShutdownObserver function in browsers such as Mozilla Firefox, Firefox ESR, and the email client Thunderbird is related to dependencies on behaviors that are undefined for each implementation type. Exploiting this vulnerability could allow a malicious actor to compromise...

Undefined Behaviour

Firefox is vulnerable to Undefined Behaviour. The vulnerability is caused due to ShutdownObserver component undefined behavior due to its reliance on a dynamic type that lacked a virtual destructor. This can lead to compromising Confidentiality, Integrity and Availability of the system...

CVE-2023-6863

The Mozilla Foundation Security Advisory describes this flaw as: The ShutdownObserver was susceptible to potentially undefined behavior due to its reliance on a dynamic type that lacked a virtual destructor...

SUSE CVE-2023-6863

The ShutdownObserver was susceptible to potentially undefined behavior due to its reliance on a dynamic type that lacked a virtual destructor. This vulnerability affects Firefox ESR 115.6, Thunderbird 115.6, and Firefox 121...

CVE-2023-6863

The ShutdownObserver was susceptible to potentially undefined behavior due to its reliance on a dynamic type that lacked a virtual destructor. This vulnerability affects Firefox ESR 115.6, Thunderbird 115.6, and Firefox 121...

CVE-2023-6863

The ShutdownObserver was susceptible to potentially undefined behavior due to its reliance on a dynamic type that lacked a virtual destructor. This vulnerability affects Firefox ESR 115.6, Thunderbird 115.6, and Firefox 121...

DEBIAN-CVE-2023-6863

The ShutdownObserver was susceptible to potentially undefined behavior due to its reliance on a dynamic type that lacked a virtual destructor. This vulnerability affects Firefox ESR 115.6, Thunderbird 115.6, and Firefox 121...

CVE-2023-6863

The ShutdownObserver was susceptible to potentially undefined behavior due to its reliance on a dynamic type that lacked a virtual destructor. This vulnerability affects Firefox ESR 115.6, Thunderbird 115.6, and Firefox 121...

Design/Logic Flaw

The ShutdownObserver was susceptible to potentially undefined behavior due to its reliance on a dynamic type that lacked a virtual destructor. This vulnerability affects Firefox ESR 115.6, Thunderbird 115.6, and Firefox 121...

Mozilla Firefox Security Vulnerability

Mozilla Firefox is an open source web browser from the Mozilla Foundation in the United States. A security vulnerability exists in Mozilla Firefox, which stems from a security flaw in the ShutdownObserver function. Affected products and versions: Firefox ESR before 115.6, Thunderbird before 115.6...

Mozilla Firefox ESR < 115.6

The version of Firefox ESR installed on the remote Windows host is prior to 115.6. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2023-54 advisory. - Memory safety bugs present in Firefox 120, Firefox ESR 115.5, and Thunderbird 115.5. Some of these bugs showed...

Security Vulnerabilities fixed in Firefox 121 — Mozilla

The WebGL DrawElementsInstanced method was susceptible to a heap buffer overflow when used on systems with the Mesa VM driver. This issue could allow an attacker to perform remote code execution and sandbox escape. Multiple NSS NIST curves were susceptible to a side-channel attack known as...